2 * ffmpeg option parsing
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "libavformat/avformat.h"
28 #include "libavcodec/avcodec.h"
30 #include "libavfilter/avfilter.h"
32 #include "libavutil/avassert.h"
33 #include "libavutil/avstring.h"
34 #include "libavutil/avutil.h"
35 #include "libavutil/channel_layout.h"
36 #include "libavutil/intreadwrite.h"
37 #include "libavutil/fifo.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/opt.h"
40 #include "libavutil/parseutils.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/pixfmt.h"
44 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
47 for (i = 0; i < o->nb_ ## name; i++) {\
48 char *spec = o->name[i].specifier;\
49 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
50 outvar = o->name[i].u.type;\
56 #define MATCH_PER_TYPE_OPT(name, type, outvar, fmtctx, mediatype)\
59 for (i = 0; i < o->nb_ ## name; i++) {\
60 char *spec = o->name[i].specifier;\
61 if (!strcmp(spec, mediatype))\
62 outvar = o->name[i].u.type;\
66 const HWAccel hwaccels[] = {
68 { "vdpau", vdpau_init, HWACCEL_VDPAU, AV_PIX_FMT_VDPAU },
71 { "dxva2", dxva2_init, HWACCEL_DXVA2, AV_PIX_FMT_DXVA2_VLD },
74 { "vda", vda_init, HWACCEL_VDA, AV_PIX_FMT_VDA },
79 char *vstats_filename;
81 float audio_drift_threshold = 0.1;
82 float dts_delta_threshold = 10;
83 float dts_error_threshold = 3600*30;
85 int audio_volume = 256;
86 int audio_sync_method = 0;
87 int video_sync_method = VSYNC_AUTO;
88 int do_deinterlace = 0;
90 int do_benchmark_all = 0;
96 int exit_on_error = 0;
99 int stdin_interaction = 1;
100 int frame_bits_per_raw_sample = 0;
101 float max_error_rate = 2.0/3;
104 static int intra_only = 0;
105 static int file_overwrite = 0;
106 static int no_file_overwrite = 0;
107 static int video_discard = 0;
108 static int intra_dc_precision = 8;
109 static int do_psnr = 0;
110 static int input_sync;
111 static int override_ffserver = 0;
113 static void uninit_options(OptionsContext *o)
115 const OptionDef *po = options;
118 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
120 void *dst = (uint8_t*)o + po->u.off;
122 if (po->flags & OPT_SPEC) {
123 SpecifierOpt **so = dst;
124 int i, *count = (int*)(so + 1);
125 for (i = 0; i < *count; i++) {
126 av_freep(&(*so)[i].specifier);
127 if (po->flags & OPT_STRING)
128 av_freep(&(*so)[i].u.str);
132 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
137 for (i = 0; i < o->nb_stream_maps; i++)
138 av_freep(&o->stream_maps[i].linklabel);
139 av_freep(&o->stream_maps);
140 av_freep(&o->audio_channel_maps);
141 av_freep(&o->streamid_map);
142 av_freep(&o->attachments);
145 static void init_options(OptionsContext *o)
147 memset(o, 0, sizeof(*o));
149 o->stop_time = INT64_MAX;
150 o->mux_max_delay = 0.7;
151 o->start_time = AV_NOPTS_VALUE;
152 o->recording_time = INT64_MAX;
153 o->limit_filesize = UINT64_MAX;
154 o->chapters_input_file = INT_MAX;
155 o->accurate_seek = 1;
158 /* return a copy of the input with the stream specifiers removed from the keys */
159 static AVDictionary *strip_specifiers(AVDictionary *dict)
161 AVDictionaryEntry *e = NULL;
162 AVDictionary *ret = NULL;
164 while ((e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
165 char *p = strchr(e->key, ':');
169 av_dict_set(&ret, e->key, e->value, 0);
176 static int opt_sameq(void *optctx, const char *opt, const char *arg)
178 av_log(NULL, AV_LOG_ERROR, "Option '%s' was removed. "
179 "If you are looking for an option to preserve the quality (which is not "
180 "what -%s was for), use -qscale 0 or an equivalent quality factor option.\n",
182 return AVERROR(EINVAL);
185 static int opt_video_channel(void *optctx, const char *opt, const char *arg)
187 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
188 return opt_default(optctx, "channel", arg);
191 static int opt_video_standard(void *optctx, const char *opt, const char *arg)
193 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
194 return opt_default(optctx, "standard", arg);
197 static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
199 OptionsContext *o = optctx;
200 return parse_option(o, "codec:a", arg, options);
203 static int opt_video_codec(void *optctx, const char *opt, const char *arg)
205 OptionsContext *o = optctx;
206 return parse_option(o, "codec:v", arg, options);
209 static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
211 OptionsContext *o = optctx;
212 return parse_option(o, "codec:s", arg, options);
215 static int opt_data_codec(void *optctx, const char *opt, const char *arg)
217 OptionsContext *o = optctx;
218 return parse_option(o, "codec:d", arg, options);
221 static int opt_map(void *optctx, const char *opt, const char *arg)
223 OptionsContext *o = optctx;
225 int i, negative = 0, file_idx;
226 int sync_file_idx = -1, sync_stream_idx = 0;
234 map = av_strdup(arg);
236 /* parse sync stream first, just pick first matching stream */
237 if (sync = strchr(map, ',')) {
239 sync_file_idx = strtol(sync + 1, &sync, 0);
240 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
241 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
246 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
247 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
248 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
252 if (i == input_files[sync_file_idx]->nb_streams) {
253 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
254 "match any streams.\n", arg);
261 /* this mapping refers to lavfi output */
262 const char *c = map + 1;
263 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
264 m = &o->stream_maps[o->nb_stream_maps - 1];
265 m->linklabel = av_get_token(&c, "]");
267 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
271 file_idx = strtol(map, &p, 0);
272 if (file_idx >= nb_input_files || file_idx < 0) {
273 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
277 /* disable some already defined maps */
278 for (i = 0; i < o->nb_stream_maps; i++) {
279 m = &o->stream_maps[i];
280 if (file_idx == m->file_index &&
281 check_stream_specifier(input_files[m->file_index]->ctx,
282 input_files[m->file_index]->ctx->streams[m->stream_index],
283 *p == ':' ? p + 1 : p) > 0)
287 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
288 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
289 *p == ':' ? p + 1 : p) <= 0)
291 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
292 m = &o->stream_maps[o->nb_stream_maps - 1];
294 m->file_index = file_idx;
297 if (sync_file_idx >= 0) {
298 m->sync_file_index = sync_file_idx;
299 m->sync_stream_index = sync_stream_idx;
301 m->sync_file_index = file_idx;
302 m->sync_stream_index = i;
308 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
316 static int opt_attach(void *optctx, const char *opt, const char *arg)
318 OptionsContext *o = optctx;
319 GROW_ARRAY(o->attachments, o->nb_attachments);
320 o->attachments[o->nb_attachments - 1] = arg;
324 static int opt_map_channel(void *optctx, const char *opt, const char *arg)
326 OptionsContext *o = optctx;
331 GROW_ARRAY(o->audio_channel_maps, o->nb_audio_channel_maps);
332 m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
334 /* muted channel syntax */
335 n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
336 if ((n == 1 || n == 3) && m->channel_idx == -1) {
337 m->file_idx = m->stream_idx = -1;
339 m->ofile_idx = m->ostream_idx = -1;
344 n = sscanf(arg, "%d.%d.%d:%d.%d",
345 &m->file_idx, &m->stream_idx, &m->channel_idx,
346 &m->ofile_idx, &m->ostream_idx);
348 if (n != 3 && n != 5) {
349 av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
350 "[file.stream.channel|-1][:syncfile:syncstream]\n");
354 if (n != 5) // only file.stream.channel specified
355 m->ofile_idx = m->ostream_idx = -1;
358 if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
359 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
363 if (m->stream_idx < 0 ||
364 m->stream_idx >= input_files[m->file_idx]->nb_streams) {
365 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
366 m->file_idx, m->stream_idx);
369 st = input_files[m->file_idx]->ctx->streams[m->stream_idx];
370 if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO) {
371 av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
372 m->file_idx, m->stream_idx);
375 if (m->channel_idx < 0 || m->channel_idx >= st->codec->channels) {
376 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid audio channel #%d.%d.%d\n",
377 m->file_idx, m->stream_idx, m->channel_idx);
384 * Parse a metadata specifier passed as 'arg' parameter.
385 * @param arg metadata string to parse
386 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
387 * @param index for type c/p, chapter/program index is written here
388 * @param stream_spec for type s, the stream specifier is written here
390 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
398 if (*(++arg) && *arg != ':') {
399 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
402 *stream_spec = *arg == ':' ? arg + 1 : "";
407 *index = strtol(++arg, NULL, 0);
410 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
417 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
419 AVDictionary **meta_in = NULL;
420 AVDictionary **meta_out = NULL;
422 char type_in, type_out;
423 const char *istream_spec = NULL, *ostream_spec = NULL;
424 int idx_in = 0, idx_out = 0;
426 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
427 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
430 if (type_out == 'g' || !*outspec)
431 o->metadata_global_manual = 1;
432 if (type_out == 's' || !*outspec)
433 o->metadata_streams_manual = 1;
434 if (type_out == 'c' || !*outspec)
435 o->metadata_chapters_manual = 1;
439 if (type_in == 'g' || type_out == 'g')
440 o->metadata_global_manual = 1;
441 if (type_in == 's' || type_out == 's')
442 o->metadata_streams_manual = 1;
443 if (type_in == 'c' || type_out == 'c')
444 o->metadata_chapters_manual = 1;
446 /* ic is NULL when just disabling automatic mappings */
450 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
451 if ((index) < 0 || (index) >= (nb_elems)) {\
452 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
457 #define SET_DICT(type, meta, context, index)\
460 meta = &context->metadata;\
463 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
464 meta = &context->chapters[index]->metadata;\
467 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
468 meta = &context->programs[index]->metadata;\
471 break; /* handled separately below */ \
472 default: av_assert0(0);\
475 SET_DICT(type_in, meta_in, ic, idx_in);
476 SET_DICT(type_out, meta_out, oc, idx_out);
478 /* for input streams choose first matching stream */
479 if (type_in == 's') {
480 for (i = 0; i < ic->nb_streams; i++) {
481 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
482 meta_in = &ic->streams[i]->metadata;
488 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
493 if (type_out == 's') {
494 for (i = 0; i < oc->nb_streams; i++) {
495 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
496 meta_out = &oc->streams[i]->metadata;
497 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
502 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
507 static int opt_recording_timestamp(void *optctx, const char *opt, const char *arg)
509 OptionsContext *o = optctx;
511 int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
512 struct tm time = *gmtime((time_t*)&recording_timestamp);
513 strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
514 parse_option(o, "metadata", buf, options);
516 av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
517 "tag instead.\n", opt);
521 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
523 const AVCodecDescriptor *desc;
524 const char *codec_string = encoder ? "encoder" : "decoder";
528 avcodec_find_encoder_by_name(name) :
529 avcodec_find_decoder_by_name(name);
531 if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
532 codec = encoder ? avcodec_find_encoder(desc->id) :
533 avcodec_find_decoder(desc->id);
535 av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
536 codec_string, codec->name, desc->name);
540 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
543 if (codec->type != type) {
544 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
550 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
552 char *codec_name = NULL;
554 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
556 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
557 st->codec->codec_id = codec->id;
560 return avcodec_find_decoder(st->codec->codec_id);
563 /* Add all the streams from the given input file to the global
564 * list of input streams. */
565 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
569 for (i = 0; i < ic->nb_streams; i++) {
570 AVStream *st = ic->streams[i];
571 AVCodecContext *dec = st->codec;
572 InputStream *ist = av_mallocz(sizeof(*ist));
573 char *framerate = NULL, *hwaccel = NULL, *hwaccel_device = NULL;
574 char *codec_tag = NULL;
580 GROW_ARRAY(input_streams, nb_input_streams);
581 input_streams[nb_input_streams - 1] = ist;
584 ist->file_index = nb_input_files;
586 st->discard = AVDISCARD_ALL;
589 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
591 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
593 uint32_t tag = strtol(codec_tag, &next, 0);
595 tag = AV_RL32(codec_tag);
596 st->codec->codec_tag = tag;
599 ist->dec = choose_decoder(o, ic, st);
600 ist->decoder_opts = filter_codec_opts(o->g->codec_opts, ist->st->codec->codec_id, ic, st, ist->dec);
602 ist->reinit_filters = -1;
603 MATCH_PER_STREAM_OPT(reinit_filters, i, ist->reinit_filters, ic, st);
605 ist->filter_in_rescale_delta_last = AV_NOPTS_VALUE;
607 ist->dec_ctx = avcodec_alloc_context3(ist->dec);
609 av_log(NULL, AV_LOG_ERROR, "Error allocating the decoder context.\n");
613 ret = avcodec_copy_context(ist->dec_ctx, dec);
615 av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
619 switch (dec->codec_type) {
620 case AVMEDIA_TYPE_VIDEO:
622 ist->dec = avcodec_find_decoder(dec->codec_id);
623 if (av_codec_get_lowres(dec)) {
624 dec->flags |= CODEC_FLAG_EMU_EDGE;
627 ist->resample_height = ist->dec_ctx->height;
628 ist->resample_width = ist->dec_ctx->width;
629 ist->resample_pix_fmt = ist->dec_ctx->pix_fmt;
631 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
632 if (framerate && av_parse_video_rate(&ist->framerate,
634 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
639 ist->top_field_first = -1;
640 MATCH_PER_STREAM_OPT(top_field_first, i, ist->top_field_first, ic, st);
642 MATCH_PER_STREAM_OPT(hwaccels, str, hwaccel, ic, st);
644 if (!strcmp(hwaccel, "none"))
645 ist->hwaccel_id = HWACCEL_NONE;
646 else if (!strcmp(hwaccel, "auto"))
647 ist->hwaccel_id = HWACCEL_AUTO;
650 for (i = 0; hwaccels[i].name; i++) {
651 if (!strcmp(hwaccels[i].name, hwaccel)) {
652 ist->hwaccel_id = hwaccels[i].id;
657 if (!ist->hwaccel_id) {
658 av_log(NULL, AV_LOG_FATAL, "Unrecognized hwaccel: %s.\n",
660 av_log(NULL, AV_LOG_FATAL, "Supported hwaccels: ");
661 for (i = 0; hwaccels[i].name; i++)
662 av_log(NULL, AV_LOG_FATAL, "%s ", hwaccels[i].name);
663 av_log(NULL, AV_LOG_FATAL, "\n");
669 MATCH_PER_STREAM_OPT(hwaccel_devices, str, hwaccel_device, ic, st);
670 if (hwaccel_device) {
671 ist->hwaccel_device = av_strdup(hwaccel_device);
672 if (!ist->hwaccel_device)
675 ist->hwaccel_pix_fmt = AV_PIX_FMT_NONE;
678 case AVMEDIA_TYPE_AUDIO:
679 ist->guess_layout_max = INT_MAX;
680 MATCH_PER_STREAM_OPT(guess_layout_max, i, ist->guess_layout_max, ic, st);
681 guess_input_channel_layout(ist);
683 ist->resample_sample_fmt = ist->dec_ctx->sample_fmt;
684 ist->resample_sample_rate = ist->dec_ctx->sample_rate;
685 ist->resample_channels = ist->dec_ctx->channels;
686 ist->resample_channel_layout = ist->dec_ctx->channel_layout;
689 case AVMEDIA_TYPE_DATA:
690 case AVMEDIA_TYPE_SUBTITLE: {
691 char *canvas_size = NULL;
693 ist->dec = avcodec_find_decoder(dec->codec_id);
694 MATCH_PER_STREAM_OPT(fix_sub_duration, i, ist->fix_sub_duration, ic, st);
695 MATCH_PER_STREAM_OPT(canvas_sizes, str, canvas_size, ic, st);
697 av_parse_video_size(&dec->width, &dec->height, canvas_size) < 0) {
698 av_log(NULL, AV_LOG_FATAL, "Invalid canvas size: %s.\n", canvas_size);
703 case AVMEDIA_TYPE_ATTACHMENT:
704 case AVMEDIA_TYPE_UNKNOWN:
712 static void assert_file_overwrite(const char *filename)
714 if (file_overwrite && no_file_overwrite) {
715 fprintf(stderr, "Error, both -y and -n supplied. Exiting.\n");
719 if (!file_overwrite) {
720 const char *proto_name = avio_find_protocol_name(filename);
721 if (proto_name && !strcmp(proto_name, "file") && avio_check(filename, 0) == 0) {
722 if (stdin_interaction && !no_file_overwrite) {
723 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
726 signal(SIGINT, SIG_DFL);
728 av_log(NULL, AV_LOG_FATAL, "Not overwriting - exiting\n");
734 av_log(NULL, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
741 static void dump_attachment(AVStream *st, const char *filename)
744 AVIOContext *out = NULL;
745 AVDictionaryEntry *e;
747 if (!st->codec->extradata_size) {
748 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
749 nb_input_files - 1, st->index);
752 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
755 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
756 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
760 assert_file_overwrite(filename);
762 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
763 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
768 avio_write(out, st->codec->extradata, st->codec->extradata_size);
773 static int open_input_file(OptionsContext *o, const char *filename)
777 AVInputFormat *file_iformat = NULL;
782 AVDictionary *unused_opts = NULL;
783 AVDictionaryEntry *e = NULL;
784 int orig_nb_streams; // number of streams before avformat_find_stream_info
785 char * video_codec_name = NULL;
786 char * audio_codec_name = NULL;
787 char *subtitle_codec_name = NULL;
790 if (!(file_iformat = av_find_input_format(o->format))) {
791 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
796 if (!strcmp(filename, "-"))
799 stdin_interaction &= strncmp(filename, "pipe:", 5) &&
800 strcmp(filename, "/dev/stdin");
802 /* get default parameters from command line */
803 ic = avformat_alloc_context();
805 print_error(filename, AVERROR(ENOMEM));
808 if (o->nb_audio_sample_rate) {
809 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
810 av_dict_set(&o->g->format_opts, "sample_rate", buf, 0);
812 if (o->nb_audio_channels) {
813 /* because we set audio_channels based on both the "ac" and
814 * "channel_layout" options, we need to check that the specified
815 * demuxer actually has the "channels" option before setting it */
816 if (file_iformat && file_iformat->priv_class &&
817 av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
818 AV_OPT_SEARCH_FAKE_OBJ)) {
819 snprintf(buf, sizeof(buf), "%d",
820 o->audio_channels[o->nb_audio_channels - 1].u.i);
821 av_dict_set(&o->g->format_opts, "channels", buf, 0);
824 if (o->nb_frame_rates) {
825 /* set the format-level framerate option;
826 * this is important for video grabbers, e.g. x11 */
827 if (file_iformat && file_iformat->priv_class &&
828 av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
829 AV_OPT_SEARCH_FAKE_OBJ)) {
830 av_dict_set(&o->g->format_opts, "framerate",
831 o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
834 if (o->nb_frame_sizes) {
835 av_dict_set(&o->g->format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
837 if (o->nb_frame_pix_fmts)
838 av_dict_set(&o->g->format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
840 MATCH_PER_TYPE_OPT(codec_names, str, video_codec_name, ic, "v");
841 MATCH_PER_TYPE_OPT(codec_names, str, audio_codec_name, ic, "a");
842 MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, ic, "s");
844 ic->video_codec_id = video_codec_name ?
845 find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0)->id : AV_CODEC_ID_NONE;
846 ic->audio_codec_id = audio_codec_name ?
847 find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0)->id : AV_CODEC_ID_NONE;
848 ic->subtitle_codec_id= subtitle_codec_name ?
849 find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0)->id : AV_CODEC_ID_NONE;
851 if (video_codec_name)
852 av_format_set_video_codec (ic, find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0));
853 if (audio_codec_name)
854 av_format_set_audio_codec (ic, find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0));
855 if (subtitle_codec_name)
856 av_format_set_subtitle_codec(ic, find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0));
858 ic->flags |= AVFMT_FLAG_NONBLOCK;
859 ic->interrupt_callback = int_cb;
861 /* open the input file with generic avformat function */
862 err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
864 print_error(filename, err);
867 assert_avoptions(o->g->format_opts);
869 /* apply forced codec ids */
870 for (i = 0; i < ic->nb_streams; i++)
871 choose_decoder(o, ic, ic->streams[i]);
873 /* Set AVCodecContext options for avformat_find_stream_info */
874 opts = setup_find_stream_info_opts(ic, o->g->codec_opts);
875 orig_nb_streams = ic->nb_streams;
877 /* If not enough info to get the stream parameters, we decode the
878 first frames to get it. (used in mpeg case for example) */
879 ret = avformat_find_stream_info(ic, opts);
881 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
882 avformat_close_input(&ic);
886 timestamp = (o->start_time == AV_NOPTS_VALUE) ? 0 : o->start_time;
887 /* add the stream start time */
888 if (ic->start_time != AV_NOPTS_VALUE)
889 timestamp += ic->start_time;
891 /* if seeking requested, we execute it */
892 if (o->start_time != AV_NOPTS_VALUE) {
893 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, timestamp, 0);
895 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
896 filename, (double)timestamp / AV_TIME_BASE);
900 /* update the current parameters so that they match the one of the input stream */
901 add_input_streams(o, ic);
903 /* dump the file content */
904 av_dump_format(ic, nb_input_files, filename, 0);
906 GROW_ARRAY(input_files, nb_input_files);
907 f = av_mallocz(sizeof(*f));
910 input_files[nb_input_files - 1] = f;
913 f->ist_index = nb_input_streams - ic->nb_streams;
914 f->start_time = o->start_time;
915 f->recording_time = o->recording_time;
916 f->input_ts_offset = o->input_ts_offset;
917 f->ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
918 f->nb_streams = ic->nb_streams;
919 f->rate_emu = o->rate_emu;
920 f->accurate_seek = o->accurate_seek;
922 /* check if all codec options have been used */
923 unused_opts = strip_specifiers(o->g->codec_opts);
924 for (i = f->ist_index; i < nb_input_streams; i++) {
926 while ((e = av_dict_get(input_streams[i]->decoder_opts, "", e,
927 AV_DICT_IGNORE_SUFFIX)))
928 av_dict_set(&unused_opts, e->key, NULL, 0);
932 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
933 const AVClass *class = avcodec_get_class();
934 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
935 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
936 const AVClass *fclass = avformat_get_class();
937 const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
938 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
939 if (!option || foption)
943 if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
944 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
945 "input file #%d (%s) is not a decoding option.\n", e->key,
946 option->help ? option->help : "", nb_input_files - 1,
951 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
952 "input file #%d (%s) has not been used for any stream. The most "
953 "likely reason is either wrong type (e.g. a video option with "
954 "no video streams) or that it is a private option of some decoder "
955 "which was not actually used for any stream.\n", e->key,
956 option->help ? option->help : "", nb_input_files - 1, filename);
958 av_dict_free(&unused_opts);
960 for (i = 0; i < o->nb_dump_attachment; i++) {
963 for (j = 0; j < ic->nb_streams; j++) {
964 AVStream *st = ic->streams[j];
966 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
967 dump_attachment(st, o->dump_attachment[i].u.str);
971 for (i = 0; i < orig_nb_streams; i++)
972 av_dict_free(&opts[i]);
978 static uint8_t *get_line(AVIOContext *s)
984 if (avio_open_dyn_buf(&line) < 0) {
985 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
989 while ((c = avio_r8(s)) && c != '\n')
992 avio_close_dyn_buf(line, &buf);
997 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
1000 char filename[1000];
1001 const char *base[3] = { getenv("AVCONV_DATADIR"),
1006 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret < 0; i++) {
1010 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
1011 i != 1 ? "" : "/.avconv", codec_name, preset_name);
1012 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
1015 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
1016 i != 1 ? "" : "/.avconv", preset_name);
1017 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
1023 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
1025 char *codec_name = NULL;
1027 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
1029 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
1030 NULL, ost->st->codec->codec_type);
1031 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
1032 } else if (!strcmp(codec_name, "copy"))
1033 ost->stream_copy = 1;
1035 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
1036 ost->st->codec->codec_id = ost->enc->id;
1040 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type, int source_index)
1043 AVStream *st = avformat_new_stream(oc, NULL);
1044 int idx = oc->nb_streams - 1, ret = 0;
1045 char *bsf = NULL, *next, *codec_tag = NULL;
1046 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
1051 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
1055 if (oc->nb_streams - 1 < o->nb_streamid_map)
1056 st->id = o->streamid_map[oc->nb_streams - 1];
1058 GROW_ARRAY(output_streams, nb_output_streams);
1059 if (!(ost = av_mallocz(sizeof(*ost))))
1061 output_streams[nb_output_streams - 1] = ost;
1063 ost->file_index = nb_output_files - 1;
1066 st->codec->codec_type = type;
1067 choose_encoder(o, oc, ost);
1069 ost->enc_ctx = avcodec_alloc_context3(ost->enc);
1070 if (!ost->enc_ctx) {
1071 av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding context.\n");
1074 ost->enc_ctx->codec_type = type;
1077 AVIOContext *s = NULL;
1078 char *buf = NULL, *arg = NULL, *preset = NULL;
1080 ost->encoder_opts = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
1082 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
1083 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
1086 if (!buf[0] || buf[0] == '#') {
1090 if (!(arg = strchr(buf, '='))) {
1091 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
1095 av_dict_set(&ost->encoder_opts, buf, arg, AV_DICT_DONT_OVERWRITE);
1097 } while (!s->eof_reached);
1101 av_log(NULL, AV_LOG_FATAL,
1102 "Preset %s specified for stream %d:%d, but could not be opened.\n",
1103 preset, ost->file_index, ost->index);
1107 ost->encoder_opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
1110 ost->max_frames = INT64_MAX;
1111 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
1112 for (i = 0; i<o->nb_max_frames; i++) {
1113 char *p = o->max_frames[i].specifier;
1114 if (!*p && type != AVMEDIA_TYPE_VIDEO) {
1115 av_log(NULL, AV_LOG_WARNING, "Applying unspecific -frames to non video streams, maybe you meant -vframes ?\n");
1120 ost->copy_prior_start = -1;
1121 MATCH_PER_STREAM_OPT(copy_prior_start, i, ost->copy_prior_start, oc ,st);
1123 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
1125 if (next = strchr(bsf, ','))
1127 if (!(bsfc = av_bitstream_filter_init(bsf))) {
1128 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
1132 bsfc_prev->next = bsfc;
1134 ost->bitstream_filters = bsfc;
1140 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
1142 uint32_t tag = strtol(codec_tag, &next, 0);
1144 tag = AV_RL32(codec_tag);
1145 ost->enc_ctx->codec_tag = tag;
1148 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
1150 ost->enc_ctx->flags |= CODEC_FLAG_QSCALE;
1151 ost->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
1154 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
1155 ost->enc_ctx->flags |= CODEC_FLAG_GLOBAL_HEADER;
1157 av_opt_get_int(o->g->sws_opts, "sws_flags", 0, &ost->sws_flags);
1159 av_dict_copy(&ost->swr_opts, o->g->swr_opts, 0);
1160 if (ost->enc && av_get_exact_bits_per_sample(ost->enc->id) == 24)
1161 av_dict_set(&ost->swr_opts, "output_sample_bits", "24", 0);
1163 av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
1165 ost->source_index = source_index;
1166 if (source_index >= 0) {
1167 ost->sync_ist = input_streams[source_index];
1168 input_streams[source_index]->discard = 0;
1169 input_streams[source_index]->st->discard = AVDISCARD_NONE;
1171 ost->last_mux_dts = AV_NOPTS_VALUE;
1176 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
1179 const char *p = str;
1186 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
1193 /* read file contents into a string */
1194 static uint8_t *read_file(const char *filename)
1196 AVIOContext *pb = NULL;
1197 AVIOContext *dyn_buf = NULL;
1198 int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
1199 uint8_t buf[1024], *str;
1202 av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
1206 ret = avio_open_dyn_buf(&dyn_buf);
1211 while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
1212 avio_write(dyn_buf, buf, ret);
1213 avio_w8(dyn_buf, 0);
1216 ret = avio_close_dyn_buf(dyn_buf, &str);
1222 static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
1225 AVStream *st = ost->st;
1227 if (ost->filters_script && ost->filters) {
1228 av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
1229 "output stream #%d:%d.\n", nb_output_files, st->index);
1233 if (ost->filters_script)
1234 return read_file(ost->filters_script);
1235 else if (ost->filters)
1236 return av_strdup(ost->filters);
1238 return av_strdup(st->codec->codec_type == AVMEDIA_TYPE_VIDEO ?
1242 static void check_streamcopy_filters(OptionsContext *o, AVFormatContext *oc,
1243 const OutputStream *ost, enum AVMediaType type)
1245 if (ost->filters_script || ost->filters) {
1246 av_log(NULL, AV_LOG_ERROR,
1247 "%s '%s' was defined for %s output stream %d:%d but codec copy was selected.\n"
1248 "Filtering and streamcopy cannot be used together.\n",
1249 ost->filters ? "Filtergraph" : "Filtergraph script",
1250 ost->filters ? ost->filters : ost->filters_script,
1251 av_get_media_type_string(type), ost->file_index, ost->index);
1256 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1260 AVCodecContext *video_enc;
1261 char *frame_rate = NULL, *frame_aspect_ratio = NULL;
1263 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
1265 video_enc = ost->enc_ctx;
1267 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
1268 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
1269 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
1273 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
1274 if (frame_aspect_ratio) {
1276 if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
1277 q.num <= 0 || q.den <= 0) {
1278 av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
1281 ost->frame_aspect_ratio = q;
1284 MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
1285 MATCH_PER_STREAM_OPT(filters, str, ost->filters, oc, st);
1287 if (!ost->stream_copy) {
1288 const char *p = NULL;
1289 char *frame_size = NULL;
1290 char *frame_pix_fmt = NULL;
1291 char *intra_matrix = NULL, *inter_matrix = NULL;
1292 char *chroma_intra_matrix = NULL;
1296 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1297 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
1298 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1302 video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
1303 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
1304 if (frame_pix_fmt && *frame_pix_fmt == '+') {
1305 ost->keep_pix_fmt = 1;
1306 if (!*++frame_pix_fmt)
1307 frame_pix_fmt = NULL;
1309 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
1310 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
1313 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
1316 video_enc->gop_size = 0;
1317 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
1319 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
1320 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1323 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
1325 MATCH_PER_STREAM_OPT(chroma_intra_matrices, str, chroma_intra_matrix, oc, st);
1326 if (chroma_intra_matrix) {
1327 uint16_t *p = av_mallocz(sizeof(*video_enc->chroma_intra_matrix) * 64);
1329 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1332 av_codec_set_chroma_intra_matrix(video_enc, p);
1333 parse_matrix_coeffs(p, chroma_intra_matrix);
1335 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
1337 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
1338 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
1341 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
1344 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
1345 for (i = 0; p; i++) {
1347 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
1349 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
1352 /* FIXME realloc failure */
1353 video_enc->rc_override =
1354 av_realloc(video_enc->rc_override,
1355 sizeof(RcOverride) * (i + 1));
1356 video_enc->rc_override[i].start_frame = start;
1357 video_enc->rc_override[i].end_frame = end;
1359 video_enc->rc_override[i].qscale = q;
1360 video_enc->rc_override[i].quality_factor = 1.0;
1363 video_enc->rc_override[i].qscale = 0;
1364 video_enc->rc_override[i].quality_factor = -q/100.0;
1369 video_enc->rc_override_count = i;
1370 video_enc->intra_dc_precision = intra_dc_precision - 8;
1373 video_enc->flags|= CODEC_FLAG_PSNR;
1376 MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
1379 video_enc->flags |= CODEC_FLAG_PASS1;
1380 av_dict_set(&ost->encoder_opts, "flags", "+pass1", AV_DICT_APPEND);
1383 video_enc->flags |= CODEC_FLAG_PASS2;
1384 av_dict_set(&ost->encoder_opts, "flags", "+pass2", AV_DICT_APPEND);
1388 MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
1389 if (ost->logfile_prefix &&
1390 !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
1393 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
1394 if (ost->forced_keyframes)
1395 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
1397 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
1399 ost->top_field_first = -1;
1400 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
1403 ost->avfilter = get_ost_filters(o, oc, ost);
1407 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
1410 if (ost->stream_copy)
1411 check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_VIDEO);
1416 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1421 AVCodecContext *audio_enc;
1423 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO, source_index);
1426 audio_enc = ost->enc_ctx;
1427 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
1429 MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
1430 MATCH_PER_STREAM_OPT(filters, str, ost->filters, oc, st);
1432 if (!ost->stream_copy) {
1433 char *sample_fmt = NULL;
1435 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
1437 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
1439 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
1440 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
1444 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
1446 MATCH_PER_STREAM_OPT(apad, str, ost->apad, oc, st);
1447 ost->apad = av_strdup(ost->apad);
1449 ost->avfilter = get_ost_filters(o, oc, ost);
1453 /* check for channel mapping for this audio stream */
1454 for (n = 0; n < o->nb_audio_channel_maps; n++) {
1455 AudioChannelMap *map = &o->audio_channel_maps[n];
1456 if ((map->ofile_idx == -1 || ost->file_index == map->ofile_idx) &&
1457 (map->ostream_idx == -1 || ost->st->index == map->ostream_idx)) {
1460 if (map->channel_idx == -1) {
1462 } else if (ost->source_index < 0) {
1463 av_log(NULL, AV_LOG_FATAL, "Cannot determine input stream for channel mapping %d.%d\n",
1464 ost->file_index, ost->st->index);
1467 ist = input_streams[ost->source_index];
1470 if (!ist || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) {
1471 if (ost->audio_channels_mapped < FF_ARRAY_ELEMS(ost->audio_channels_map))
1472 ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
1474 av_log(NULL, AV_LOG_FATAL, "Max channel mapping for output %d.%d reached\n",
1475 ost->file_index, ost->st->index);
1481 if (ost->stream_copy)
1482 check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_AUDIO);
1487 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1491 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA, source_index);
1492 if (!ost->stream_copy) {
1493 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
1500 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1502 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT, source_index);
1503 ost->stream_copy = 1;
1508 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1512 AVCodecContext *subtitle_enc;
1514 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE, source_index);
1516 subtitle_enc = ost->enc_ctx;
1518 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
1520 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc, st);
1522 if (!ost->stream_copy) {
1523 char *frame_size = NULL;
1525 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1526 if (frame_size && av_parse_video_size(&subtitle_enc->width, &subtitle_enc->height, frame_size) < 0) {
1527 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1535 /* arg format is "output-stream-index:streamid-value". */
1536 static int opt_streamid(void *optctx, const char *opt, const char *arg)
1538 OptionsContext *o = optctx;
1543 av_strlcpy(idx_str, arg, sizeof(idx_str));
1544 p = strchr(idx_str, ':');
1546 av_log(NULL, AV_LOG_FATAL,
1547 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
1552 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
1553 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
1554 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
1558 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
1560 AVFormatContext *is = ifile->ctx;
1561 AVFormatContext *os = ofile->ctx;
1565 tmp = av_realloc_f(os->chapters, is->nb_chapters + os->nb_chapters, sizeof(*os->chapters));
1567 return AVERROR(ENOMEM);
1570 for (i = 0; i < is->nb_chapters; i++) {
1571 AVChapter *in_ch = is->chapters[i], *out_ch;
1572 int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
1573 int64_t ts_off = av_rescale_q(start_time - ifile->ts_offset,
1574 AV_TIME_BASE_Q, in_ch->time_base);
1575 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
1576 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1579 if (in_ch->end < ts_off)
1581 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1584 out_ch = av_mallocz(sizeof(AVChapter));
1586 return AVERROR(ENOMEM);
1588 out_ch->id = in_ch->id;
1589 out_ch->time_base = in_ch->time_base;
1590 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1591 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1594 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1596 os->chapters[os->nb_chapters++] = out_ch;
1601 static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
1604 AVFormatContext *ic = avformat_alloc_context();
1606 ic->interrupt_callback = int_cb;
1607 err = avformat_open_input(&ic, filename, NULL, NULL);
1610 /* copy stream format */
1611 for(i=0;i<ic->nb_streams;i++) {
1615 AVCodecContext *avctx;
1617 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
1618 ost = new_output_stream(o, s, codec->type, -1);
1623 // FIXME: a more elegant solution is needed
1624 memcpy(st, ic->streams[i], sizeof(AVStream));
1626 st->info = av_malloc(sizeof(*st->info));
1627 memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
1629 avcodec_copy_context(st->codec, ic->streams[i]->codec);
1631 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
1632 choose_sample_fmt(st, codec);
1633 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
1634 choose_pixel_fmt(st, st->codec, codec, st->codec->pix_fmt);
1635 avcodec_copy_context(ost->enc_ctx, st->codec);
1638 avformat_close_input(&ic);
1642 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
1643 AVFormatContext *oc)
1647 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1648 ofilter->out_tmp->pad_idx)) {
1649 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc, -1); break;
1650 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc, -1); break;
1652 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
1657 ost->source_index = -1;
1658 ost->filter = ofilter;
1662 if (ost->stream_copy) {
1663 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
1664 "which is fed from a complex filtergraph. Filtering and streamcopy "
1665 "cannot be used together.\n", ost->file_index, ost->index);
1669 if (ost->avfilter && (ost->filters || ost->filters_script)) {
1670 const char *opt = ost->filters ? "-vf/-af/-filter" : "-filter_script";
1671 av_log(NULL, AV_LOG_ERROR,
1672 "%s '%s' was specified through the %s option "
1673 "for output stream %d:%d, which is fed from a complex filtergraph.\n"
1674 "%s and -filter_complex cannot be used together for the same stream.\n",
1675 ost->filters ? "Filtergraph" : "Filtergraph script",
1676 ost->filters ? ost->filters : ost->filters_script,
1677 opt, ost->file_index, ost->index, opt);
1681 if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
1682 av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
1685 avfilter_inout_free(&ofilter->out_tmp);
1688 static int configure_complex_filters(void)
1692 for (i = 0; i < nb_filtergraphs; i++)
1693 if (!filtergraphs[i]->graph &&
1694 (ret = configure_filtergraph(filtergraphs[i])) < 0)
1699 static int open_output_file(OptionsContext *o, const char *filename)
1701 AVFormatContext *oc;
1703 AVOutputFormat *file_oformat;
1707 AVDictionary *unused_opts = NULL;
1708 AVDictionaryEntry *e = NULL;
1710 if (configure_complex_filters() < 0) {
1711 av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
1715 if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
1716 o->stop_time = INT64_MAX;
1717 av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
1720 if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
1721 int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
1722 if (o->stop_time <= start_time) {
1723 av_log(NULL, AV_LOG_WARNING, "-to value smaller than -ss; ignoring -to.\n");
1724 o->stop_time = INT64_MAX;
1726 o->recording_time = o->stop_time - start_time;
1730 GROW_ARRAY(output_files, nb_output_files);
1731 of = av_mallocz(sizeof(*of));
1734 output_files[nb_output_files - 1] = of;
1736 of->ost_index = nb_output_streams;
1737 of->recording_time = o->recording_time;
1738 of->start_time = o->start_time;
1739 of->limit_filesize = o->limit_filesize;
1740 of->shortest = o->shortest;
1741 av_dict_copy(&of->opts, o->g->format_opts, 0);
1743 if (!strcmp(filename, "-"))
1746 err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
1748 print_error(filename, err);
1753 if (o->recording_time != INT64_MAX)
1754 oc->duration = o->recording_time;
1756 file_oformat= oc->oformat;
1757 oc->interrupt_callback = int_cb;
1759 /* create streams for all unlabeled output pads */
1760 for (i = 0; i < nb_filtergraphs; i++) {
1761 FilterGraph *fg = filtergraphs[i];
1762 for (j = 0; j < fg->nb_outputs; j++) {
1763 OutputFilter *ofilter = fg->outputs[j];
1765 if (!ofilter->out_tmp || ofilter->out_tmp->name)
1768 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1769 ofilter->out_tmp->pad_idx)) {
1770 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
1771 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
1772 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
1774 init_output_filter(ofilter, o, oc);
1778 /* ffserver seeking with date=... needs a date reference */
1779 if (!strcmp(file_oformat->name, "ffm") &&
1780 av_strstart(filename, "http:", NULL)) {
1781 int err = parse_option(o, "metadata", "creation_time=now", options);
1783 print_error(filename, err);
1788 if (!strcmp(file_oformat->name, "ffm") && !override_ffserver &&
1789 av_strstart(filename, "http:", NULL)) {
1791 /* special case for files sent to ffserver: we get the stream
1792 parameters from ffserver */
1793 int err = read_ffserver_streams(o, oc, filename);
1795 print_error(filename, err);
1798 for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
1799 ost = output_streams[j];
1800 for (i = 0; i < nb_input_streams; i++) {
1801 ist = input_streams[i];
1802 if(ist->st->codec->codec_type == ost->st->codec->codec_type){
1804 ost->source_index= i;
1805 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) ost->avfilter = av_strdup("anull");
1806 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) ost->avfilter = av_strdup("null");
1808 ist->st->discard = AVDISCARD_NONE;
1813 av_log(NULL, AV_LOG_FATAL, "Missing %s stream which is required by this ffm\n", av_get_media_type_string(ost->st->codec->codec_type));
1817 } else if (!o->nb_stream_maps) {
1818 char *subtitle_codec_name = NULL;
1819 /* pick the "best" stream of each type */
1821 /* video: highest resolution */
1822 if (!o->video_disable && oc->oformat->video_codec != AV_CODEC_ID_NONE) {
1823 int area = 0, idx = -1;
1824 int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
1825 for (i = 0; i < nb_input_streams; i++) {
1827 ist = input_streams[i];
1828 new_area = ist->st->codec->width * ist->st->codec->height;
1829 if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1831 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1833 if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1840 new_video_stream(o, oc, idx);
1843 /* audio: most channels */
1844 if (!o->audio_disable && oc->oformat->audio_codec != AV_CODEC_ID_NONE) {
1845 int channels = 0, idx = -1;
1846 for (i = 0; i < nb_input_streams; i++) {
1847 ist = input_streams[i];
1848 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1849 ist->st->codec->channels > channels) {
1850 channels = ist->st->codec->channels;
1855 new_audio_stream(o, oc, idx);
1858 /* subtitles: pick first */
1859 MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
1860 if (!o->subtitle_disable && (avcodec_find_encoder(oc->oformat->subtitle_codec) || subtitle_codec_name)) {
1861 for (i = 0; i < nb_input_streams; i++)
1862 if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1863 new_subtitle_stream(o, oc, i);
1867 /* do something with data? */
1869 for (i = 0; i < o->nb_stream_maps; i++) {
1870 StreamMap *map = &o->stream_maps[i];
1875 if (map->linklabel) {
1877 OutputFilter *ofilter = NULL;
1880 for (j = 0; j < nb_filtergraphs; j++) {
1881 fg = filtergraphs[j];
1882 for (k = 0; k < fg->nb_outputs; k++) {
1883 AVFilterInOut *out = fg->outputs[k]->out_tmp;
1884 if (out && !strcmp(out->name, map->linklabel)) {
1885 ofilter = fg->outputs[k];
1892 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
1893 "in any defined filter graph, or was already used elsewhere.\n", map->linklabel);
1896 init_output_filter(ofilter, o, oc);
1898 int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
1900 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
1901 if(o->subtitle_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
1903 if(o-> audio_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1905 if(o-> video_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1907 if(o-> data_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_DATA)
1910 switch (ist->st->codec->codec_type) {
1911 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream (o, oc, src_idx); break;
1912 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream (o, oc, src_idx); break;
1913 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream (o, oc, src_idx); break;
1914 case AVMEDIA_TYPE_DATA: ost = new_data_stream (o, oc, src_idx); break;
1915 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
1917 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
1918 map->file_index, map->stream_index);
1925 /* handle attached files */
1926 for (i = 0; i < o->nb_attachments; i++) {
1928 uint8_t *attachment;
1932 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
1933 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
1937 if ((len = avio_size(pb)) <= 0) {
1938 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
1942 if (!(attachment = av_malloc(len))) {
1943 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
1947 avio_read(pb, attachment, len);
1949 ost = new_attachment_stream(o, oc, -1);
1950 ost->stream_copy = 0;
1951 ost->attachment_filename = o->attachments[i];
1953 ost->enc_ctx->extradata = attachment;
1954 ost->enc_ctx->extradata_size = len;
1956 p = strrchr(o->attachments[i], '/');
1957 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
1961 for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
1962 AVDictionaryEntry *e;
1963 ost = output_streams[i];
1965 if ((ost->stream_copy || ost->attachment_filename)
1966 && (e = av_dict_get(o->g->codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
1967 && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
1968 if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
1972 /* check if all codec options have been used */
1973 unused_opts = strip_specifiers(o->g->codec_opts);
1974 for (i = of->ost_index; i < nb_output_streams; i++) {
1976 while ((e = av_dict_get(output_streams[i]->encoder_opts, "", e,
1977 AV_DICT_IGNORE_SUFFIX)))
1978 av_dict_set(&unused_opts, e->key, NULL, 0);
1982 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
1983 const AVClass *class = avcodec_get_class();
1984 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
1985 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
1988 if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
1989 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
1990 "output file #%d (%s) is not an encoding option.\n", e->key,
1991 option->help ? option->help : "", nb_output_files - 1,
1996 // gop_timecode is injected by generic code but not always used
1997 if (!strcmp(e->key, "gop_timecode"))
2000 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
2001 "output file #%d (%s) has not been used for any stream. The most "
2002 "likely reason is either wrong type (e.g. a video option with "
2003 "no video streams) or that it is a private option of some encoder "
2004 "which was not actually used for any stream.\n", e->key,
2005 option->help ? option->help : "", nb_output_files - 1, filename);
2007 av_dict_free(&unused_opts);
2009 /* check filename in case of an image number is expected */
2010 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
2011 if (!av_filename_number_test(oc->filename)) {
2012 print_error(oc->filename, AVERROR(EINVAL));
2017 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
2018 /* test if it already exists to avoid losing precious files */
2019 assert_file_overwrite(filename);
2022 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
2023 &oc->interrupt_callback,
2025 print_error(filename, err);
2028 } else if (strcmp(oc->oformat->name, "image2")==0 && !av_filename_number_test(filename))
2029 assert_file_overwrite(filename);
2031 if (o->mux_preload) {
2033 snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
2034 av_dict_set(&of->opts, "preload", buf, 0);
2036 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
2039 for (i = 0; i < o->nb_metadata_map; i++) {
2041 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
2043 if (in_file_index >= nb_input_files) {
2044 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
2047 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
2048 in_file_index >= 0 ?
2049 input_files[in_file_index]->ctx : NULL, o);
2053 if (o->chapters_input_file >= nb_input_files) {
2054 if (o->chapters_input_file == INT_MAX) {
2055 /* copy chapters from the first input file that has them*/
2056 o->chapters_input_file = -1;
2057 for (i = 0; i < nb_input_files; i++)
2058 if (input_files[i]->ctx->nb_chapters) {
2059 o->chapters_input_file = i;
2063 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
2064 o->chapters_input_file);
2068 if (o->chapters_input_file >= 0)
2069 copy_chapters(input_files[o->chapters_input_file], of,
2070 !o->metadata_chapters_manual);
2072 /* copy global metadata by default */
2073 if (!o->metadata_global_manual && nb_input_files){
2074 av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
2075 AV_DICT_DONT_OVERWRITE);
2076 if(o->recording_time != INT64_MAX)
2077 av_dict_set(&oc->metadata, "duration", NULL, 0);
2078 av_dict_set(&oc->metadata, "creation_time", NULL, 0);
2080 if (!o->metadata_streams_manual)
2081 for (i = of->ost_index; i < nb_output_streams; i++) {
2083 if (output_streams[i]->source_index < 0) /* this is true e.g. for attached files */
2085 ist = input_streams[output_streams[i]->source_index];
2086 av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
2087 if (!output_streams[i]->stream_copy)
2088 av_dict_set(&output_streams[i]->st->metadata, "encoder", NULL, 0);
2091 /* process manually set metadata */
2092 for (i = 0; i < o->nb_metadata; i++) {
2095 const char *stream_spec;
2096 int index = 0, j, ret = 0;
2098 val = strchr(o->metadata[i].u.str, '=');
2100 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
2101 o->metadata[i].u.str);
2106 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
2108 for (j = 0; j < oc->nb_streams; j++) {
2109 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
2110 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
2121 if (index < 0 || index >= oc->nb_chapters) {
2122 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
2125 m = &oc->chapters[index]->metadata;
2128 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
2131 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
2138 static int opt_target(void *optctx, const char *opt, const char *arg)
2140 OptionsContext *o = optctx;
2141 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
2142 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
2144 if (!strncmp(arg, "pal-", 4)) {
2147 } else if (!strncmp(arg, "ntsc-", 5)) {
2150 } else if (!strncmp(arg, "film-", 5)) {
2154 /* Try to determine PAL/NTSC by peeking in the input files */
2155 if (nb_input_files) {
2157 for (j = 0; j < nb_input_files; j++) {
2158 for (i = 0; i < input_files[j]->nb_streams; i++) {
2159 AVCodecContext *c = input_files[j]->ctx->streams[i]->codec;
2160 if (c->codec_type != AVMEDIA_TYPE_VIDEO)
2162 fr = c->time_base.den * 1000 / c->time_base.num;
2166 } else if ((fr == 29970) || (fr == 23976)) {
2171 if (norm != UNKNOWN)
2175 if (norm != UNKNOWN)
2176 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
2179 if (norm == UNKNOWN) {
2180 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
2181 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
2182 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
2186 if (!strcmp(arg, "vcd")) {
2187 opt_video_codec(o, "c:v", "mpeg1video");
2188 opt_audio_codec(o, "c:a", "mp2");
2189 parse_option(o, "f", "vcd", options);
2191 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
2192 parse_option(o, "r", frame_rates[norm], options);
2193 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", AV_DICT_DONT_OVERWRITE);
2195 av_dict_set(&o->g->codec_opts, "b:v", "1150000", AV_DICT_DONT_OVERWRITE);
2196 av_dict_set(&o->g->codec_opts, "maxrate", "1150000", AV_DICT_DONT_OVERWRITE);
2197 av_dict_set(&o->g->codec_opts, "minrate", "1150000", AV_DICT_DONT_OVERWRITE);
2198 av_dict_set(&o->g->codec_opts, "bufsize", "327680", AV_DICT_DONT_OVERWRITE); // 40*1024*8;
2200 av_dict_set(&o->g->codec_opts, "b:a", "224000", AV_DICT_DONT_OVERWRITE);
2201 parse_option(o, "ar", "44100", options);
2202 parse_option(o, "ac", "2", options);
2204 av_dict_set(&o->g->format_opts, "packetsize", "2324", AV_DICT_DONT_OVERWRITE);
2205 av_dict_set(&o->g->format_opts, "muxrate", "1411200", AV_DICT_DONT_OVERWRITE); // 2352 * 75 * 8;
2207 /* We have to offset the PTS, so that it is consistent with the SCR.
2208 SCR starts at 36000, but the first two packs contain only padding
2209 and the first pack from the other stream, respectively, may also have
2210 been written before.
2211 So the real data starts at SCR 36000+3*1200. */
2212 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
2213 } else if (!strcmp(arg, "svcd")) {
2215 opt_video_codec(o, "c:v", "mpeg2video");
2216 opt_audio_codec(o, "c:a", "mp2");
2217 parse_option(o, "f", "svcd", options);
2219 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
2220 parse_option(o, "r", frame_rates[norm], options);
2221 parse_option(o, "pix_fmt", "yuv420p", options);
2222 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", AV_DICT_DONT_OVERWRITE);
2224 av_dict_set(&o->g->codec_opts, "b:v", "2040000", AV_DICT_DONT_OVERWRITE);
2225 av_dict_set(&o->g->codec_opts, "maxrate", "2516000", AV_DICT_DONT_OVERWRITE);
2226 av_dict_set(&o->g->codec_opts, "minrate", "0", AV_DICT_DONT_OVERWRITE); // 1145000;
2227 av_dict_set(&o->g->codec_opts, "bufsize", "1835008", AV_DICT_DONT_OVERWRITE); // 224*1024*8;
2228 av_dict_set(&o->g->codec_opts, "scan_offset", "1", AV_DICT_DONT_OVERWRITE);
2230 av_dict_set(&o->g->codec_opts, "b:a", "224000", AV_DICT_DONT_OVERWRITE);
2231 parse_option(o, "ar", "44100", options);
2233 av_dict_set(&o->g->format_opts, "packetsize", "2324", AV_DICT_DONT_OVERWRITE);
2235 } else if (!strcmp(arg, "dvd")) {
2237 opt_video_codec(o, "c:v", "mpeg2video");
2238 opt_audio_codec(o, "c:a", "ac3");
2239 parse_option(o, "f", "dvd", options);
2241 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2242 parse_option(o, "r", frame_rates[norm], options);
2243 parse_option(o, "pix_fmt", "yuv420p", options);
2244 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", AV_DICT_DONT_OVERWRITE);
2246 av_dict_set(&o->g->codec_opts, "b:v", "6000000", AV_DICT_DONT_OVERWRITE);
2247 av_dict_set(&o->g->codec_opts, "maxrate", "9000000", AV_DICT_DONT_OVERWRITE);
2248 av_dict_set(&o->g->codec_opts, "minrate", "0", AV_DICT_DONT_OVERWRITE); // 1500000;
2249 av_dict_set(&o->g->codec_opts, "bufsize", "1835008", AV_DICT_DONT_OVERWRITE); // 224*1024*8;
2251 av_dict_set(&o->g->format_opts, "packetsize", "2048", AV_DICT_DONT_OVERWRITE); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
2252 av_dict_set(&o->g->format_opts, "muxrate", "10080000", AV_DICT_DONT_OVERWRITE); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
2254 av_dict_set(&o->g->codec_opts, "b:a", "448000", AV_DICT_DONT_OVERWRITE);
2255 parse_option(o, "ar", "48000", options);
2257 } else if (!strncmp(arg, "dv", 2)) {
2259 parse_option(o, "f", "dv", options);
2261 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2262 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
2263 norm == PAL ? "yuv420p" : "yuv411p", options);
2264 parse_option(o, "r", frame_rates[norm], options);
2266 parse_option(o, "ar", "48000", options);
2267 parse_option(o, "ac", "2", options);
2270 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
2271 return AVERROR(EINVAL);
2276 static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
2278 av_free (vstats_filename);
2279 vstats_filename = av_strdup (arg);
2283 static int opt_vstats(void *optctx, const char *opt, const char *arg)
2286 time_t today2 = time(NULL);
2287 struct tm *today = localtime(&today2);
2289 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
2291 return opt_vstats_file(NULL, opt, filename);
2294 static int opt_video_frames(void *optctx, const char *opt, const char *arg)
2296 OptionsContext *o = optctx;
2297 return parse_option(o, "frames:v", arg, options);
2300 static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
2302 OptionsContext *o = optctx;
2303 return parse_option(o, "frames:a", arg, options);
2306 static int opt_data_frames(void *optctx, const char *opt, const char *arg)
2308 OptionsContext *o = optctx;
2309 return parse_option(o, "frames:d", arg, options);
2312 static int opt_default_new(OptionsContext *o, const char *opt, const char *arg)
2315 AVDictionary *cbak = codec_opts;
2316 AVDictionary *fbak = format_opts;
2320 ret = opt_default(NULL, opt, arg);
2322 av_dict_copy(&o->g->codec_opts , codec_opts, 0);
2323 av_dict_copy(&o->g->format_opts, format_opts, 0);
2324 av_dict_free(&codec_opts);
2325 av_dict_free(&format_opts);
2332 static int opt_preset(void *optctx, const char *opt, const char *arg)
2334 OptionsContext *o = optctx;
2336 char filename[1000], line[1000], tmp_line[1000];
2337 const char *codec_name = NULL;
2341 MATCH_PER_TYPE_OPT(codec_names, str, codec_name, NULL, tmp_line);
2343 if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
2344 if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
2345 av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
2347 av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
2351 while (fgets(line, sizeof(line), f)) {
2352 char *key = tmp_line, *value, *endptr;
2354 if (strcspn(line, "#\n\r") == 0)
2356 av_strlcpy(tmp_line, line, sizeof(tmp_line));
2357 if (!av_strtok(key, "=", &value) ||
2358 !av_strtok(value, "\r\n", &endptr)) {
2359 av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
2362 av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
2364 if (!strcmp(key, "acodec")) opt_audio_codec (o, key, value);
2365 else if (!strcmp(key, "vcodec")) opt_video_codec (o, key, value);
2366 else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
2367 else if (!strcmp(key, "dcodec")) opt_data_codec (o, key, value);
2368 else if (opt_default_new(o, key, value) < 0) {
2369 av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
2370 filename, line, key, value);
2380 static int opt_old2new(void *optctx, const char *opt, const char *arg)
2382 OptionsContext *o = optctx;
2383 char *s = av_asprintf("%s:%c", opt + 1, *opt);
2384 int ret = parse_option(o, s, arg, options);
2389 static int opt_bitrate(void *optctx, const char *opt, const char *arg)
2391 OptionsContext *o = optctx;
2392 if(!strcmp(opt, "b")){
2393 av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
2394 av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
2397 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2401 static int opt_qscale(void *optctx, const char *opt, const char *arg)
2403 OptionsContext *o = optctx;
2406 if(!strcmp(opt, "qscale")){
2407 av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
2408 return parse_option(o, "q:v", arg, options);
2410 s = av_asprintf("q%s", opt + 6);
2411 ret = parse_option(o, s, arg, options);
2416 static int opt_profile(void *optctx, const char *opt, const char *arg)
2418 OptionsContext *o = optctx;
2419 if(!strcmp(opt, "profile")){
2420 av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
2421 av_dict_set(&o->g->codec_opts, "profile:v", arg, 0);
2424 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2428 static int opt_video_filters(void *optctx, const char *opt, const char *arg)
2430 OptionsContext *o = optctx;
2431 return parse_option(o, "filter:v", arg, options);
2434 static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
2436 OptionsContext *o = optctx;
2437 return parse_option(o, "filter:a", arg, options);
2440 static int opt_vsync(void *optctx, const char *opt, const char *arg)
2442 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
2443 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
2444 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
2445 else if (!av_strcasecmp(arg, "drop")) video_sync_method = VSYNC_DROP;
2447 if (video_sync_method == VSYNC_AUTO)
2448 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
2452 static int opt_timecode(void *optctx, const char *opt, const char *arg)
2454 OptionsContext *o = optctx;
2455 char *tcr = av_asprintf("timecode=%s", arg);
2456 int ret = parse_option(o, "metadata:g", tcr, options);
2458 ret = av_dict_set(&o->g->codec_opts, "gop_timecode", arg, 0);
2463 static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
2465 OptionsContext *o = optctx;
2466 char layout_str[32];
2469 int ret, channels, ac_str_size;
2472 layout = av_get_channel_layout(arg);
2474 av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
2475 return AVERROR(EINVAL);
2477 snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
2478 ret = opt_default_new(o, opt, layout_str);
2482 /* set 'ac' option based on channel layout */
2483 channels = av_get_channel_layout_nb_channels(layout);
2484 snprintf(layout_str, sizeof(layout_str), "%d", channels);
2485 stream_str = strchr(opt, ':');
2486 ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
2487 ac_str = av_mallocz(ac_str_size);
2489 return AVERROR(ENOMEM);
2490 av_strlcpy(ac_str, "ac", 3);
2492 av_strlcat(ac_str, stream_str, ac_str_size);
2493 ret = parse_option(o, ac_str, layout_str, options);
2499 static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
2501 OptionsContext *o = optctx;
2502 return parse_option(o, "q:a", arg, options);
2505 static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
2507 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2508 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2509 return AVERROR(ENOMEM);
2510 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2511 filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
2512 if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
2513 return AVERROR(ENOMEM);
2517 static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
2519 uint8_t *graph_desc = read_file(arg);
2521 return AVERROR(EINVAL);
2523 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2524 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2525 return AVERROR(ENOMEM);
2526 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2527 filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
2531 void show_help_default(const char *opt, const char *arg)
2533 /* per-file options have at least one of those set */
2534 const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
2535 int show_advanced = 0, show_avoptions = 0;
2538 if (!strcmp(opt, "long"))
2540 else if (!strcmp(opt, "full"))
2541 show_advanced = show_avoptions = 1;
2543 av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
2548 printf("Getting help:\n"
2549 " -h -- print basic options\n"
2550 " -h long -- print more options\n"
2551 " -h full -- print all options (including all format and codec specific options, very long)\n"
2552 " See man %s for detailed description of the options.\n"
2553 "\n", program_name);
2555 show_help_options(options, "Print help / information / capabilities:",
2558 show_help_options(options, "Global options (affect whole program "
2559 "instead of just one file:",
2560 0, per_file | OPT_EXIT | OPT_EXPERT, 0);
2562 show_help_options(options, "Advanced global options:", OPT_EXPERT,
2563 per_file | OPT_EXIT, 0);
2565 show_help_options(options, "Per-file main options:", 0,
2566 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
2567 OPT_EXIT, per_file);
2569 show_help_options(options, "Advanced per-file options:",
2570 OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
2572 show_help_options(options, "Video options:",
2573 OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
2575 show_help_options(options, "Advanced Video options:",
2576 OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
2578 show_help_options(options, "Audio options:",
2579 OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
2581 show_help_options(options, "Advanced Audio options:",
2582 OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
2583 show_help_options(options, "Subtitle options:",
2584 OPT_SUBTITLE, 0, 0);
2587 if (show_avoptions) {
2588 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
2589 show_help_children(avcodec_get_class(), flags);
2590 show_help_children(avformat_get_class(), flags);
2592 show_help_children(sws_get_class(), flags);
2594 show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
2595 show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM);
2599 void show_usage(void)
2601 av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
2602 av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
2603 av_log(NULL, AV_LOG_INFO, "\n");
2611 static const OptionGroupDef groups[] = {
2612 [GROUP_OUTFILE] = { "output file", NULL, OPT_OUTPUT },
2613 [GROUP_INFILE] = { "input file", "i", OPT_INPUT },
2616 static int open_files(OptionGroupList *l, const char *inout,
2617 int (*open_file)(OptionsContext*, const char*))
2621 for (i = 0; i < l->nb_groups; i++) {
2622 OptionGroup *g = &l->groups[i];
2628 ret = parse_optgroup(&o, g);
2630 av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
2631 "%s.\n", inout, g->arg);
2635 av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
2636 ret = open_file(&o, g->arg);
2639 av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
2643 av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
2649 int ffmpeg_parse_options(int argc, char **argv)
2651 OptionParseContext octx;
2655 memset(&octx, 0, sizeof(octx));
2657 /* split the commandline into an internal representation */
2658 ret = split_commandline(&octx, argc, argv, options, groups,
2659 FF_ARRAY_ELEMS(groups));
2661 av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
2665 /* apply global options */
2666 ret = parse_optgroup(NULL, &octx.global_opts);
2668 av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
2672 /* open input files */
2673 ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
2675 av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
2679 /* open output files */
2680 ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
2682 av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
2687 uninit_parse_context(&octx);
2689 av_strerror(ret, error, sizeof(error));
2690 av_log(NULL, AV_LOG_FATAL, "%s\n", error);
2695 static int opt_progress(void *optctx, const char *opt, const char *arg)
2697 AVIOContext *avio = NULL;
2700 if (!strcmp(arg, "-"))
2702 ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
2704 av_log(NULL, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
2705 arg, av_err2str(ret));
2708 progress_avio = avio;
2712 #define OFFSET(x) offsetof(OptionsContext, x)
2713 const OptionDef options[] = {
2715 #include "cmdutils_common_opts.h"
2716 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET |
2717 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(format) },
2718 "force format", "fmt" },
2719 { "y", OPT_BOOL, { &file_overwrite },
2720 "overwrite output files" },
2721 { "n", OPT_BOOL, { &no_file_overwrite },
2722 "never overwrite output files" },
2723 { "c", HAS_ARG | OPT_STRING | OPT_SPEC |
2724 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2725 "codec name", "codec" },
2726 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC |
2727 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2728 "codec name", "codec" },
2729 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC |
2730 OPT_OUTPUT, { .off = OFFSET(presets) },
2731 "preset name", "preset" },
2732 { "map", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2733 OPT_OUTPUT, { .func_arg = opt_map },
2734 "set input stream mapping",
2735 "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
2736 { "map_channel", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_map_channel },
2737 "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
2738 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC |
2739 OPT_OUTPUT, { .off = OFFSET(metadata_map) },
2740 "set metadata information of outfile from infile",
2741 "outfile[,metadata]:infile[,metadata]" },
2742 { "map_chapters", HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
2743 OPT_OUTPUT, { .off = OFFSET(chapters_input_file) },
2744 "set chapters mapping", "input_file_index" },
2745 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET |
2746 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(recording_time) },
2747 "record or transcode \"duration\" seconds of audio/video",
2749 { "to", HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(stop_time) },
2750 "record or transcode stop time", "time_stop" },
2751 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
2752 "set the limit file size in bytes", "limit_size" },
2753 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET |
2754 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(start_time) },
2755 "set the start time offset", "time_off" },
2756 { "accurate_seek", OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
2757 OPT_INPUT, { .off = OFFSET(accurate_seek) },
2758 "enable/disable accurate seeking with -ss" },
2759 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET |
2760 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(input_ts_offset) },
2761 "set the input ts offset", "time_off" },
2762 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC |
2763 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(ts_scale) },
2764 "set the input ts scale", "scale" },
2765 { "timestamp", HAS_ARG | OPT_PERFILE, { .func_arg = opt_recording_timestamp },
2766 "set the recording timestamp ('now' to set the current time)", "time" },
2767 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
2768 "add metadata", "string=string" },
2769 { "dframes", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2770 OPT_OUTPUT, { .func_arg = opt_data_frames },
2771 "set the number of data frames to record", "number" },
2772 { "benchmark", OPT_BOOL | OPT_EXPERT, { &do_benchmark },
2773 "add timings for benchmarking" },
2774 { "benchmark_all", OPT_BOOL | OPT_EXPERT, { &do_benchmark_all },
2775 "add timings for each task" },
2776 { "progress", HAS_ARG | OPT_EXPERT, { .func_arg = opt_progress },
2777 "write program-readable progress information", "url" },
2778 { "stdin", OPT_BOOL | OPT_EXPERT, { &stdin_interaction },
2779 "enable or disable interaction on standard input" },
2780 { "timelimit", HAS_ARG | OPT_EXPERT, { .func_arg = opt_timelimit },
2781 "set max runtime in seconds", "limit" },
2782 { "dump", OPT_BOOL | OPT_EXPERT, { &do_pkt_dump },
2783 "dump each input packet" },
2784 { "hex", OPT_BOOL | OPT_EXPERT, { &do_hex_dump },
2785 "when dumping packets, also dump the payload" },
2786 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2787 OPT_INPUT, { .off = OFFSET(rate_emu) },
2788 "read input at native frame rate", "" },
2789 { "target", HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_target },
2790 "specify target file type (\"vcd\", \"svcd\", \"dvd\","
2791 " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
2792 { "vsync", HAS_ARG | OPT_EXPERT, { opt_vsync },
2793 "video sync method", "" },
2794 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, { &audio_sync_method },
2795 "audio sync method", "" },
2796 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &audio_drift_threshold },
2797 "audio drift threshold", "threshold" },
2798 { "copyts", OPT_BOOL | OPT_EXPERT, { ©_ts },
2799 "copy timestamps" },
2800 { "copytb", HAS_ARG | OPT_INT | OPT_EXPERT, { ©_tb },
2801 "copy input stream time base when stream copying", "mode" },
2802 { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2803 OPT_OUTPUT, { .off = OFFSET(shortest) },
2804 "finish encoding within shortest input" },
2805 { "apad", OPT_STRING | HAS_ARG | OPT_SPEC |
2806 OPT_OUTPUT, { .off = OFFSET(apad) },
2808 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_delta_threshold },
2809 "timestamp discontinuity delta threshold", "threshold" },
2810 { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_error_threshold },
2811 "timestamp error delta threshold", "threshold" },
2812 { "xerror", OPT_BOOL | OPT_EXPERT, { &exit_on_error },
2813 "exit on error", "error" },
2814 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2815 OPT_OUTPUT, { .off = OFFSET(copy_initial_nonkeyframes) },
2816 "copy initial non-keyframes" },
2817 { "copypriorss", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(copy_prior_start) },
2818 "copy or discard frames before start time" },
2819 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
2820 "set the number of frames to record", "number" },
2821 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC |
2822 OPT_EXPERT | OPT_OUTPUT | OPT_INPUT, { .off = OFFSET(codec_tags) },
2823 "force codec tag/fourcc", "fourcc/tag" },
2824 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2825 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2826 "use fixed quality scale (VBR)", "q" },
2827 { "qscale", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2828 OPT_OUTPUT, { .func_arg = opt_qscale },
2829 "use fixed quality scale (VBR)", "q" },
2830 { "profile", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_profile },
2831 "set profile", "profile" },
2832 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
2833 "set stream filtergraph", "filter_graph" },
2834 { "filter_script", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
2835 "read stream filtergraph description from a file", "filename" },
2836 { "reinit_filter", HAS_ARG | OPT_INT | OPT_SPEC | OPT_INPUT, { .off = OFFSET(reinit_filters) },
2837 "reinit filtergraph on input parameter changes", "" },
2838 { "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2839 "create a complex filtergraph", "graph_description" },
2840 { "lavfi", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2841 "create a complex filtergraph", "graph_description" },
2842 { "filter_complex_script", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex_script },
2843 "read complex filtergraph description from a file", "filename" },
2844 { "stats", OPT_BOOL, { &print_stats },
2845 "print progress report during encoding", },
2846 { "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2847 OPT_OUTPUT, { .func_arg = opt_attach },
2848 "add an attachment to the output file", "filename" },
2849 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
2850 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(dump_attachment) },
2851 "extract an attachment into a file", "filename" },
2852 { "debug_ts", OPT_BOOL | OPT_EXPERT, { &debug_ts },
2853 "print timestamp debugging info" },
2854 { "max_error_rate", HAS_ARG | OPT_FLOAT, { &max_error_rate },
2855 "maximum error rate", "ratio of errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success." },
2858 { "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_frames },
2859 "set the number of video frames to record", "number" },
2860 { "r", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2861 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_rates) },
2862 "set frame rate (Hz value, fraction or abbreviation)", "rate" },
2863 { "s", OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
2864 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_sizes) },
2865 "set frame size (WxH or abbreviation)", "size" },
2866 { "aspect", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2867 OPT_OUTPUT, { .off = OFFSET(frame_aspect_ratios) },
2868 "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
2869 { "pix_fmt", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2870 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_pix_fmts) },
2871 "set pixel format", "format" },
2872 { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG, { &frame_bits_per_raw_sample },
2873 "set the number of bits per raw sample", "number" },
2874 { "intra", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &intra_only },
2875 "deprecated use -g 1" },
2876 { "vn", OPT_VIDEO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(video_disable) },
2878 { "vdt", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &video_discard },
2879 "discard threshold", "n" },
2880 { "rc_override", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2881 OPT_OUTPUT, { .off = OFFSET(rc_overrides) },
2882 "rate control override for specific intervals", "override" },
2883 { "vcodec", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_INPUT |
2884 OPT_OUTPUT, { .func_arg = opt_video_codec },
2885 "force video codec ('copy' to copy stream)", "codec" },
2886 { "sameq", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2888 { "same_quant", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2890 { "timecode", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_timecode },
2891 "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
2892 { "pass", OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT, { .off = OFFSET(pass) },
2893 "select the pass number (1 to 3)", "n" },
2894 { "passlogfile", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
2895 OPT_OUTPUT, { .off = OFFSET(passlogfiles) },
2896 "select two pass log file name prefix", "prefix" },
2897 { "deinterlace", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_deinterlace },
2898 "this option is deprecated, use the yadif filter instead" },
2899 { "psnr", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_psnr },
2900 "calculate PSNR of compressed frames" },
2901 { "vstats", OPT_VIDEO | OPT_EXPERT , { &opt_vstats },
2902 "dump video coding statistics to file" },
2903 { "vstats_file", OPT_VIDEO | HAS_ARG | OPT_EXPERT , { opt_vstats_file },
2904 "dump video coding statistics to file", "file" },
2905 { "vf", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_filters },
2906 "set video filters", "filter_graph" },
2907 { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2908 OPT_OUTPUT, { .off = OFFSET(intra_matrices) },
2909 "specify intra matrix coeffs", "matrix" },
2910 { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2911 OPT_OUTPUT, { .off = OFFSET(inter_matrices) },
2912 "specify inter matrix coeffs", "matrix" },
2913 { "chroma_intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2914 OPT_OUTPUT, { .off = OFFSET(chroma_intra_matrices) },
2915 "specify intra matrix coeffs", "matrix" },
2916 { "top", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_INT| OPT_SPEC |
2917 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(top_field_first) },
2918 "top=1/bottom=0/auto=-1 field first", "" },
2919 { "dc", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &intra_dc_precision },
2920 "intra_dc_precision", "precision" },
2921 { "vtag", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2922 OPT_OUTPUT, { .func_arg = opt_old2new },
2923 "force video tag/fourcc", "fourcc/tag" },
2924 { "qphist", OPT_VIDEO | OPT_BOOL | OPT_EXPERT , { &qp_hist },
2925 "show QP histogram" },
2926 { "force_fps", OPT_VIDEO | OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2927 OPT_OUTPUT, { .off = OFFSET(force_fps) },
2928 "force the selected framerate, disable the best supported framerate selection" },
2929 { "streamid", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2930 OPT_OUTPUT, { .func_arg = opt_streamid },
2931 "set the value of an outfile streamid", "streamIndex:value" },
2932 { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2933 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(forced_key_frames) },
2934 "force key frames at specified timestamps", "timestamps" },
2935 { "b", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_bitrate },
2936 "video bitrate (please use -b:v)", "bitrate" },
2937 { "hwaccel", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2938 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccels) },
2939 "use HW accelerated decoding", "hwaccel name" },
2940 { "hwaccel_device", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2941 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_devices) },
2942 "select a device for HW acceleration" "devicename" },
2945 { "aframes", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_frames },
2946 "set the number of audio frames to record", "number" },
2947 { "aq", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_qscale },
2948 "set audio quality (codec-specific)", "quality", },
2949 { "ar", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2950 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_sample_rate) },
2951 "set audio sampling rate (in Hz)", "rate" },
2952 { "ac", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2953 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_channels) },
2954 "set number of audio channels", "channels" },
2955 { "an", OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(audio_disable) },
2957 { "acodec", OPT_AUDIO | HAS_ARG | OPT_PERFILE |
2958 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_audio_codec },
2959 "force audio codec ('copy' to copy stream)", "codec" },
2960 { "atag", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2961 OPT_OUTPUT, { .func_arg = opt_old2new },
2962 "force audio tag/fourcc", "fourcc/tag" },
2963 { "vol", OPT_AUDIO | HAS_ARG | OPT_INT, { &audio_volume },
2964 "change audio volume (256=normal)" , "volume" },
2965 { "sample_fmt", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_SPEC |
2966 OPT_STRING | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(sample_fmts) },
2967 "set sample format", "format" },
2968 { "channel_layout", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2969 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_channel_layout },
2970 "set channel layout", "layout" },
2971 { "af", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_filters },
2972 "set audio filters", "filter_graph" },
2973 { "guess_layout_max", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(guess_layout_max) },
2974 "set the maximum number of channels to try to guess the channel layout" },
2976 /* subtitle options */
2977 { "sn", OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
2978 "disable subtitle" },
2979 { "scodec", OPT_SUBTITLE | HAS_ARG | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
2980 "force subtitle codec ('copy' to copy stream)", "codec" },
2981 { "stag", OPT_SUBTITLE | HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new }
2982 , "force subtitle tag/fourcc", "fourcc/tag" },
2983 { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC | OPT_INPUT, { .off = OFFSET(fix_sub_duration) },
2984 "fix subtitles duration" },
2985 { "canvas_size", OPT_SUBTITLE | HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFFSET(canvas_sizes) },
2986 "set canvas size (WxH or abbreviation)", "size" },
2989 { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
2990 "deprecated, use -channel", "channel" },
2991 { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
2992 "deprecated, use -standard", "standard" },
2993 { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
2996 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
2997 "set the maximum demux-decode delay", "seconds" },
2998 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
2999 "set the initial demux-decode delay", "seconds" },
3000 { "override_ffserver", OPT_BOOL | OPT_EXPERT | OPT_OUTPUT, { &override_ffserver },
3001 "override the options from ffserver", "" },
3003 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
3004 "A comma-separated list of bitstream filters", "bitstream_filters" },
3005 { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
3006 "deprecated", "audio bitstream_filters" },
3007 { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
3008 "deprecated", "video bitstream_filters" },
3010 { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3011 "set the audio options to the indicated preset", "preset" },
3012 { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3013 "set the video options to the indicated preset", "preset" },
3014 { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3015 "set the subtitle options to the indicated preset", "preset" },
3016 { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3017 "set options from indicated preset file", "filename" },
3018 /* data codec support */
3019 { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
3020 "force data codec ('copy' to copy stream)", "codec" },
3021 { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },